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            width: 250px;
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        .box1 .product{
            width: 250px;
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        /*margin的顺序为上右下左*/
        .box1 h3{
            margin: 10px 25px 0 25px;
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        .box1 p{
            margin: 10px 25px 0 25px;
            color: #929292;
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        .box1 p span{
            color: orangered;

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        <h3>Android网络图片加载框架详解</h3>
        <p><span>高级</span>• 1125人在学习</p>
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